Write Source Student Edition Hardcover Grade 1 2012 Author:GREAT SOURCE Write Source is the only K 12 print and fully personalized digital language arts program with complete coverage of the Common Core Writing, Language, Listening, and Speaking standards. — This highly engaging program is designed to help students master the key writing forms, writing process, Six Traits, and grammar, usage, and mechanics skills usi... more »ng cutting-edge technology tools and 21st century skills.